Politics

Emotional stories, graphic videos and animated arguments echoed in the Senate chamber on Tuesday as the constitutionality of former President Trump's impeachment trial was debated.

NPR'S Sacha Pfeifer talks to Sarah Longwell, publisher of the conservative site The Bulwark, about whether elected officials, who helped to incite Capitol rioters, should be held accountable.

House impeachment managers will present their opening arguments. The U.S. military examines domestic extremism within its ranks. Twitter begins an effort to try to stop the spread of misinformation.